Philips PET-320 Service manual

DVD Portable Player PET320/00/05/37

A

Service Manual

©Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

ll rights reserved. No part of this publication may by reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronics,
mechanical, photocopying, or otherwise without the prior permission of Philips

TABLE OF CONTENTS

Chapter

Technical Specification……………………………………….. 1
Safety Instructions…………………………………………….. 2
Instruction for Use……………………………………………… 3
Mechanical Instructions………………………………………. 4
Troubleshooting & Service Tips………………………………5
Overall Block Diagram…………………………………………. 6
Electrical Diagram……………………………………………… 7
Component Layout…………………………………………….. 8
Exploded View Diagram & Service Part List………………. 9
Revision List……………………………………………………. 10

3141 785 30840

Version 1.0

1. TECHNICAL SPECIFICATION

General

Dimensions (WxLxH) : 154.5mm*164.48mm*27.61mm

Weight : 546.6g +- 10g
Power supply : +5V / 2A
Power consumption : Play back :4W
Operating temp. range : 0 – 50 Degree
Laser wavelength: DVD 655nm, CD 790nm
Video system : NTSC/PAL/AUTO.
Frequency response : Audio +1dB / -0.5dB
Signal/noise ratio Audio > 80 dB
Audio distortion + noise Audio < 0.6 %
Channel separation: Audio > 85 dB
Dynamic range

Output
Audio out (analog audio) 1.2 V +/- 0.1V rms

Load impedance:

Video out Output level:

Load impedance:

Current consumption

DC-IN SUPPLY (5.0V)

Battery Charging Current Stand by : 1.7 Amp

BATT. SUPPLY (3.6V)
Power Off 3.4V
Playback with TFT on 1.45A ( Normal volume)
Playback without TFT on 0.9A ( Normal volume)
Battery playtime 2.5Hours

Headphone out (headphone output load 2x16 ohm)

Maximum output power :
Frequency response :
SNR (A-wght) :
THD (1kHz) :
Left-Right Channel
Separation :
Left-Right Channel
Balance :

Supported disc type

DVD video discs:

Video CD:

(+- 0.3mm)

Audio > 80 dB

47K ohm

1 V p-p

75 ohm

Operating : 0.85 Amp

2.3mW
+/- 3dB
80 dB
1 %
55 dB

2 dB

Audio CD :

Applicable DVD Formats DVD-Video on DVD-

ROM (DVD-5, DVD-9,
DVD-10, DVD-18), DVD­R, DVD-RW, DVD+R
and DVD+RW

Applicable CD Formats (Read) CD-DA, Video CD

(MPEG-1),
MP3/WMA/JPEG CD on
CD-ROM, CD-R, and
CD-RW

Disc Diameter 8cm/12cm

Software upgrades

For the best performance of your DVD Portable.
Check www.philips.com/support for latest
software upgrades available.

To check the software version of your DVD
Portable.

1. Press the fII key to power on the player

2. Insert a DVD disc into the player

3. Press SETUP key to enter the set up menu

4. Press MENU + MENU + OSD key within 1
sec

5. The display will show the software version on
the screen as below:

SETUP MENU

SET :

MODEL :

VER :

Procedure on how to upgrade the software of the
DVD Portable

1. Download the latest software from the Philips
support site

2. Unzipped the files and then burn it onto a CD
ROM then playback the CD ROM on the DVD
Portable

3. Press the OK key to upgrade the software

Pixel specification

<= 4 (max. 1 bright dots and 3 dark dots)

WARNING

GB

All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.

F

ATTENTION

Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.

2. SAFTETY INSTRUCTIONS

ESD

D

WARNUNG

Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.

WAARSCHUWING

NL

Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.

I

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.

GB

Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.

NL

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.

F

Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.

D

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.

I

Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.

“Pour votre sécurité, ces documents
doivent être utilisés par des spécia­listes agréés, seuls habilités à réparer
votre appareil en panne”.

CLASS 1

LASER PRODUCT

GB

Warning !

Invisible laser radiation when open.
Avoid direct exposure to beam.

S

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.

Varoitus !

SF

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!

3122 110 03420

"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."

DK Advarse !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.

2.1 ESD PROTECTION

Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflaser

maybereceived.

PREPARATIONOFSERVICING

PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.

Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,

itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to

protectthelaserdiodeformdamagebystaticelectricity.

Andalso,theLSIandICaresameasabove.

Groundconductive
wriststrapforbody.

Solderingiron
withgroundwire
orceramictype

1M

Conductivemat

Thegroundresistance
betweenthegroundline
andthegroundislessthan10

SAFTY NOTICE

LEAKAGE CURRENT CHECK

SAFTY PRECAUTIONS

Plug the AC line cord directly into a 120V AC outlet (do

not use an isolation transformer for this check). Use an

AC voltmeter, having 5000 per volt or more sensitivity.

Connect a 1500 10W resistor,paralleled by a 0.15uF

150V AC capacitor between a knomn good earth ground

(water pipe, conduit, etc.) and all exposed metal parts of

cabinet (antennas, handle bracket, metal cabinet

screwheads, metal overlays, control shafts, etc.).

READING SHOULD NOT EXCEED 0.3V

DVD VIDEO PLAYER

Measure the AC voltage across the 1500 resistor.

The test must be conducted with the AC switch on and

then repeated with the AC switch off. The AC voltage

indicated by the meter may not exceed 0.3V.A reading

exceeding 0.3V indicates that a dangerous potential

exists, the fault must be located and corrected.

Repeat the above test with the DVD VIDEO PLAYER

power plug reversed.

NEVER RETURN A DVD VIDEO PLAYER TO THE

CUSTOMER WITHOUT TAKING NECESSARY

CORRECTIVE ACTION.

AC VOLTMETER

(5000 per volt
or more sensitivity)

Good earth ground

1500
10W

such as a water pipe,
conduit, etc.

AC OUTLET

0.15uF 150V AC

Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check

The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated "dangerous voltage" within the
product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.

3. INSTRUCTION FOR USE

4. MECHANICAL INSTRUCTIONS

Disassembly Procedure on PET320

1 Remove the screws on

bottom housing cabinet

Screw Philips 12NC

994000003857 (7pcs)

2 Use finger or treezer to

separate middle cabinet
from the bottom cabinet
assy

3 Generally open up the

bottom cabinet

4 After removal the bottom

cabinet, there is the
bottom PCBA connected
with the bottom cabinet.
While another side, there
is the driver, LCD and top
PCBA connected with the
middle and top cabinet.

4. MECHANICAL INSTRUCTIONS

Disassembly Procedure on PET320

Screw Philips 12NC

5 Remove the screws on

bottom PCBA to
separate it from the
bottom cabinet

6 Lift up the driver

generally from the pin
area on the middle
cabinet

7 Remove the screws on

metal plate to separate it
from the top cabinet

8 Remove the screws on

speaker holder to
separate the speaker
and top PCBA from the
top cabinet

994000003863

994000003858 (5pcs)

994000003859

994000003861 (4pcs)

4. MECHANICAL INSTRUCTIONS

Disassembly Procedure on PET320

9 Remove the screws on

LCD edge to separate it
from the top cabinet

Screw Philips 12NC

994000003862 (4pcs ­included in LCD
module)

10 The button key could be

picked up easily

994000003865

994000003864

994000003866

5. TROUBLESHOOTING & SERVICE TIPS

A

5.1 Procedure to change region code

1. Open DVD Door

2. Press and hold the OSD key together with the POWER ON (fII) key for about 4sec
to enter CONFINGURATION SETUP menu

3. Press the UP and DOWN (S▼) key to enter REGION on menu

4. Press the NEXT (ff|) key to select REGION NO.

5. Press the UP and DOWN (S▼) key to select number of 1 to 6

6. Press the OK key to save the selection.

Note : Once press OK, data with new REGION NO. will be stored into EEPROM and
replace the old one.

7. Switch off and re-switch on the product

8. Verify Region code change done

Version : 1.00

REGION

GING SETTING

DEFAULT

Region Code Region

1 USA

2 EUROPE

3 ASIA PACIFIC

4 AUSTRALIA, NEW ZEALAND, LATAM

5 RUSSIA, INDIA

6 CHINA